Novel thermal power plant bucket wheel machine displacement hopper

Abstract

The utility model discloses a novel thermal power plant bucket wheel machine displacement hopper which comprises two side plate bodies which are symmetrically arranged. The rear end plug is arranged at the end part of one end of each of the two side plate bodies, the rear end plug is arranged in a trapezoid shape, and the end parts of the two side plate bodies are attached to the edge of the rear end plug; the sealing protective leather is arranged at the bottom of the outer side of the side plate body, and the lower portion of the side edge of the sealing protective leather is attached to a belt of the conveying equipment. According to the novel thermal power plant bucket wheel machine displacement hopper provided by the utility model, the overall shape structure of the displacement hopper is changed into a canal shape through inclination of the side plate bodies and the rear end plug, so that coal flow is strongly restrained and gathered, and the coal flow is located in the middle of a belt after falling on the belt; and linear sealing between the sealing sheath and the material receiving belt part is changed into plane sealing, so that the contact surface between the sealing sheath and the belt is enlarged, the sealing performance is changed, and the sealing effect is more reliable.

Description

Technical Field

[0001] The utility model relates to the technical field related to bucket wheel machines, in particular to a novel variable position hopper of a bucket wheel machine in a thermal power plant. Background Art

[0002] The variable hopper of the bucket wheel excavator is a rectangular parallelepiped structure. When the bucket wheel excavator is stacking materials, the variable hopper is lifted, and the coal flow passes through the bottom and falls smoothly into the next-level receiving mechanism; when the bucket wheel excavator is taking materials, the variable hopper falls, and the coal flow falls from the central hopper to the inside of the variable hopper and gathers into a certain shape, so that the falling coal flow is constrained in the middle position of the conveyor belt and can move with the belt and be transported to the predetermined coal drop port position for falling.

[0003] The variable position hopper of the bucket wheel excavator is made of steel plates. The hopper side plates and the plug are vertically welded and installed. A movable hinge is welded on the outside of the side plate. A sealing guard is installed on the lower part. The guard is vertically fixed and is located in the same vertical plane as the outer wall of the side plate. The lower edge of the guard is in contact with the belt. Both the hopper side plates and the guard are perpendicular to the belt. The contact area between the lower edge of the guard and the belt is very small and the sealing is poor.

[0004] Coal flow compression increases the gap between the side panel guard and the belt of the shifting hopper. This weakens the sealing effect, exacerbating dust and coal spillage. The bucket wheel excavator is constantly moving around the coal yard to meet operational needs. Wind and air currents affect the spilled coal and pulverized coal as it falls to the ground, expanding the spillage area and causing significant coal leakage. This results in numerous repairs for maintenance personnel and frequent coal shoveling for duty personnel and cleaning staff, resulting in a heavy workload, environmental pollution, and a time-consuming and labor-intensive process. These frequent downtimes often delay the unloading and loading of coal by trains and trucks.

[0005] To this end, the present application proposes a novel variable position hopper for a bucket wheel excavator in a thermal power plant, and provides a new technical solution to solve the technical problems mentioned above. Utility Model Content

[0006] Based on this, it is necessary to provide a new type of variable position hopper for bucket wheel excavator in thermal power plants to address the above technical problems. The overall shape of the variable position hopper is changed into a channel shape by tilting the side plates and the rear end plug, which has a strong restraining and gathering effect on the coal flow, so that the coal flow falls behind the belt in the middle position of the belt.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] The invention discloses a new type of variable position hopper for bucket wheel excavators in thermal power plants, which is used for guiding and conveying coal flow of bucket wheel excavators.

[0009] The novel thermal power plant bucket wheel excavator position-changing hopper specifically comprises:

[0010] Side panels, the number of the side panels being two, and the two side panels being symmetrically arranged;

[0011] A rear end plug is provided at the end position of one end of the two side plates, the rear end plug is arranged in a trapezoidal shape, and the ends of the two side plates are fitted with the edges of the rear end plug;

[0012] A sealing cover is provided at the outer bottom of the side plate, wherein the lower side of the sealing cover is in contact with the belt of the conveying device;

[0013] A support frame is provided at the middle and outer sides of the two side panels to support and stabilize the two side panels;

[0014] The supporting rod is arranged at the outer sides of the two side plates, and the end of the supporting rod is connected to the supporting frame through a hinge seat.

[0015] As a preferred embodiment of the new thermal power plant bucket wheel excavator position-changing hopper provided by the utility model, the length of the side plate body is 1800 mm, the width of the side plate body is 450 mm, the upper side of the rear end plug is 800 mm, the lower side of the rear end plug is 400 mm, and the height of the rear end plug is 500 mm.

[0016] As a preferred embodiment of the new thermal power plant bucket wheel excavator variable position hopper provided by the utility model, the side plate body and the belt horizontal plane where the bottom material receiving part is located maintain an angle of 135°, and the distance between the lower edge of the side plate body and the belt is 50 mm in height.

[0017] As a preferred embodiment of the novel thermal power plant bucket wheel excavator position-changing hopper provided by the utility model, one end of the two side plates away from the rear end plug is slightly tilted inward.

[0018] As a preferred embodiment of the novel thermal power plant bucket wheel excavator position-changing hopper provided by the utility model, the support frame is a solid square steel of 50 mm×50 mm.

[0019] As a preferred embodiment of the new type of thermal power plant bucket wheel excavator position-shifting hopper provided by the utility model, a sealing assembly is provided on the upper part of the side plate body for sealing the gap with the central hopper, and the sealing assembly includes a vertical seal, which is vertically arranged on the inner side of the top of the side plate body, and the upper end of the vertical seal extends to the outer side of the upper end of the side plate body; the sealing assembly also includes a horizontal seal, which is horizontally arranged on the inner side of the top of the side plate body.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The utility model provides a novel variable position hopper of a bucket wheel excavator in a thermal power plant. The overall shape of the variable position hopper is changed into a channel shape by tilting the side plates and the rear end plug, which has a strong restraining and gathering effect on the coal flow, so that the coal flow falls behind the belt in the middle position of the belt.

[0022] The utility model provides a novel variable position hopper of a thermal power plant bucket wheel machine, which changes the linear seal between the sealing guard and the receiving belt into a plane seal, increases the contact surface between the sealing guard and the belt, improves the sealing performance, and makes the sealing effect more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the solutions in the present invention, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic diagram of the overall structure of the new thermal power plant bucket wheel machine variable position hopper provided by the utility model;

[0025] Figure 2 A top view of the overall structure of the new thermal power plant bucket wheel machine variable position hopper provided by the utility model;

[0026] Figure 3 This is a structural diagram of the side plate body and sealing cover of the new type of thermal power plant bucket wheel machine provided by the utility model;

[0027] Figure 4 This is a schematic structural diagram of a vertical seal for a variable-position hopper of a new type of thermal power plant bucket wheel machine provided by the utility model;

[0028] Figure 5 The utility model provides a schematic structural diagram of the horizontal seal of the variable position hopper of a new thermal power plant bucket wheel machine.

[0029] The markings in the figure are as follows:

[0030] 1. Side plate; 2. Rear end plug; 3. Sealing guard; 4. Support frame; 5. Support rod; 6. Sealing assembly; 7. Vertical seal; 8. Horizontal seal. DETAILED DESCRIPTION

[0031] In order to help those skilled in the art better understand the present invention, the following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0032] Example 1:

[0033] Please refer to Figure 1 - Figure 3 A new type of variable position hopper for a thermal power plant bucket wheel excavator, comprising:

[0034] There are two side panels 1, and the two side panels 1 are symmetrically arranged;

[0035] The rear end plug 2 is arranged at the end position of one end of the two side plates 1. The rear end plug 2 is arranged in a trapezoidal shape, and the ends of the two side plates 1 are in contact with the edges of the rear end plug 2;

[0036] Furthermore, the length of the side plate 1 is 1800mm, the width of the side plate 1 is 450mm, the upper edge of the rear end plug 2 is 800mm, the lower edge of the rear end plug 2 is 400mm, and the height of the rear end plug 2 is 500mm. The side plate 1 and its bottom receiving portion are located at a 135° angle to the horizontal plane of the belt, and the distance between the lower edge of the side plate 1 and the belt is 50mm. To further guide the coal flow, the ends of the two side plates 1 away from the rear end plug 2 are slightly tilted inward, ensuring that the coal flow is transported in the center.

[0037] The sealing cover 3 is arranged at the outer bottom of the side plate 1, and the lower side of the sealing cover 3 is in contact with the belt of the conveying equipment;

[0038] The support frame 4 is provided at the middle and outer sides of the two side panels 1 to support and stabilize the two side panels 1. The support frame 4 is a solid square steel of 50 mm x 50 mm.

[0039] The support rod 5 is arranged at the outer sides of the two side plates 1 , and the ends of the support rod 5 are connected to the support frame 4 via hinges.

[0040] The use process of the new type of thermal power plant bucket wheel machine variable position hopper provided by the utility model is as follows:

[0041] According to the different movement paths and collision and scattering positions of the last landing point of the coal flow leaving the central hopper, the side panels 1 of the variable position hopper are cut to different sizes and the ribs are designed and installed in different positions, so that the inner wall of the side panel 1 and the horizontal plane of the belt where the bottom receiving part is located are kept at an angle of 135°, and the lower edge is kept at a height of 50mm from the belt.

[0042] Adjust the height of the side plate 1 of the variable position hopper so that the lower edges on the left and right sides are at the same height and remain parallel to the receiving belt along the length direction of the receiving part.

[0043] Adjust the left and right installation positions of the variable position hopper so that its center line along the length direction coincides with the center line of the bottom receiving belt to prevent the coal flow from not being in the center position of the belt when falling, and to avoid the impact of the coal flow on the belt causing uneven force on the belt and deviation during operation.

[0044] The upper and lower hinges of the support rods 5 on both sides of the variable position hopper are welded and fixed at the correct points according to the arc formed by the different positions and movement paths during the change of the position of the variable position hopper during the stacking and discharging. The upper and lower hinges are kept vertically corresponding, with the upper ends on the same horizontal line and the lower ends on the same horizontal line, to ensure the synchronization and coordination of the movement of the support rods 5 on the left and right sides. During the position conversion process of the variable position hopper, the support rods 5 are coordinated and consistent, ensuring accurate alignment of the two working positions.

[0045] The position of the side plate 1 is adjusted so that the overall center line and the lower edge position of the variable position hopper can be welded and fixed in place while ensuring the design standards. The final position of the variable position hopper after installation is moved 200mm backward from the coal flow point before the modification, thereby expanding the receiving area of ​​the variable position hopper.

[0046] Clips for fixing the lower sealing guard 3 are welded on the outer walls of the side plate body 1 and the rear end plug 2. The cut lower half of the sealing guard 3 is inserted into the material guide trough, and the upper part is lifted and fixed on the clips of the side plate body 1 and the rear end plug 2. Since the sealing guard 3 is made of flexible rubber material, it not only has a certain hardness but also maintains its own elasticity and the ability to resist extrusion and deformation under external force, ensuring that the sealing guard 3 fits tightly to the belt.

[0047] Example 2:

[0048] The new thermal power plant bucket wheel machine variable position hopper provided in Example 1 is further optimized, specifically, as follows Figure 1 and Figure 4-Figure 5As shown, a sealing assembly 6 is provided on the upper part of the side plate body 1 for sealing the gap with the central hopper. The sealing assembly 6 includes a vertical seal 7, which is vertically arranged on the inner side of the top of the side plate body 1, and the upper end of the vertical seal 7 extends to the outer side of the upper end of the side plate body 1; the sealing assembly 6 also includes a horizontal seal 8, which is horizontally arranged on the inner side of the top of the side plate body 1.

[0049] Through the above structural design, vertical seal 7 and horizontal seal 8 are added to the upper edge of the displacement hopper to block and buffer the rebounded coal particles and coal dust, reducing the dust overflow from the junction of the central hopper and the displacement hopper.

Claims

1. A new type of variable position hopper for bucket wheel excavator in thermal power plant, characterized in that: include: Side plate bodies (1), the number of the side plate bodies (1) is two, and the two side plate bodies (1) are symmetrically arranged; A rear end plug (2) is provided at an end position of one end of the two side plates (1), the rear end plug (2) being arranged in a trapezoidal shape, and the ends of the two side plates (1) are in contact with the edges of the rear end plug (2); A sealing protective skin (3) is arranged at the outer bottom of the side plate body (1), and the lower side of the sealing protective skin (3) is in contact with the belt of the conveying equipment; A supporting frame (4) is arranged at the middle and outer sides of the two side panels (1) and is used to support and stabilize the two side panels (1); A support rod (5) is provided at a position outside the two side plates (1), and an end of the support rod (5) is connected to the support frame (4) via a hinge seat.

2. The novel variable position hopper of the bucket wheel excavator for thermal power plants according to claim 1 is characterized in that: The length of the side plate body (1) is 1800 mm, the width of the side plate body (1) is 450 mm, the upper side of the rear end plug (2) is 800 mm, the lower side of the rear end plug (2) is 400 mm, and the height of the rear end plug (2) is 500 mm.

3. The novel variable position hopper of the bucket wheel excavator for thermal power plants according to claim 1 is characterized in that: The side plate (1) and the belt horizontal plane where the bottom receiving portion of the side plate (1) is located are maintained at an angle of 135°, and the distance between the lower edge of the side plate (1) and the belt is 50 mm in height.

4. The novel variable position hopper of the bucket wheel excavator for thermal power plants according to claim 1 is characterized in that: One end of the two side plates (1) away from the rear end plug (2) is tilted inward.

5. The novel variable position hopper of the bucket wheel excavator for thermal power plants according to claim 1 is characterized in that: The support frame (4) is a solid square steel of 50mm×50mm.

6. The novel variable position hopper of the bucket wheel excavator for thermal power plants according to claim 1 is characterized in that: A sealing assembly (6) is provided on the upper portion of the side plate body (1) for sealing the gap between the side plate body (1) and the central hopper. The sealing assembly (6) includes a vertical seal (7) which is vertically arranged on the inner side of the top of the side plate body (1), and the upper end of the vertical seal (7) extends to the outer side of the upper end of the side plate body (1). The sealing assembly (6) also includes a horizontal seal (8) which is transversely arranged on the inner side of the top of the side plate body (1).

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